Journal article
Food Restriction Alters the Diurnal Distribution of Sleep in Rats
Physiology & behavior, Vol.67(5), pp.697-703
1999
Handle:
https://hdl.handle.net/2376/106067
PMID: 10604840
Abstract
The purpose of the present study was to determine the effects of restricting food and water intake to the light period on sleep and brain temperature (T
br). Sprague–Dawley male rats were anesthetized and provided with electrodes and thermistors for electroencephalographic (EEG) and T
br recordings. Baseline recordings were performed after a 3-week recovery period. After baseline recordings, access to food and water was restricted (FWR) to the light period for 29 days. During FWR, the diurnal distribution of rapid-eye-movement sleep (REMS) and T
br were reversed, while the distribution of non-REMS (NREMS) between the dark and light periods was attenuated. Daily food and water intake, body weight, and the diurnal distribution of EEG slow-wave activity within NREMS remained unchanged. In a separate study, sham-operated and pinealectomized rats were studied in a similar manner. The sleep responses of pinealectomized and sham-operated rats to FWR were similar. Further, FWR did not affect melatonin levels in the sham-operated rats, thereby suggesting that the pineal gland does not mediate the effects of FWR on sleep.
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Details
- Title
- Food Restriction Alters the Diurnal Distribution of Sleep in Rats
- Creators
- Rachida Roky - Department of Pharmacology, Faculty of Medicine and Pharmacy, Casablanca, MoroccoLevente Kapás - Department of Biological Sciences, Fordham University, Bronx, NY 10458 USAPing Taishi - Washington State University, College of Veterinary Medicine, Department of Veterinary and Comparative Anatomy, Pharmacology and Physiology, P.O. Box 646520, Pullman, WA 99164-6520 USAJidong Fang - Washington State University, College of Veterinary Medicine, Department of Veterinary and Comparative Anatomy, Pharmacology and Physiology, P.O. Box 646520, Pullman, WA 99164-6520 USAJames M Krueger - Department of Pharmacology, Faculty of Medicine and Pharmacy, Casablanca, Morocco
- Publication Details
- Physiology & behavior, Vol.67(5), pp.697-703
- Academic Unit
- Biomedical Sciences, Department of; Integrative Physiology and Neuroscience, Department of
- Publisher
- Elsevier Inc
- Identifiers
- 99900546943701842
- Language
- English
- Resource Type
- Journal article